96% White Solid Sodium Tripolyphosphate For Waste Water Treatment
Key attributes
Molecular formula: Na5P3O10
Molecular weight: 367.86
Industrial grade CAS 7758-29-4
Industrial grade products & COA meets GB/T 9983-2004 standard:
Items for detecting and analyzing | Standard value |
Main content: sodium tripolyphosphate ≥ | 96.0% |
Phosphorus pentoxide P2O5≤ | 57.0% |
Water insoluble≤ | 0.10% |
Iron ≤ | 0.007% |
Ph Value (1%) | 9.2-10.0 |
Whiteness ≥ | 90 |
Physical and chemical properties of Sodium Tripolyphosphate
Chemical Formula | Na₅P₃O₁₀ |
Molecular Weight | 367.86 g/mol |
Appearance | White crystalline or powdery solid. |
Form | Typically exists as an anhydrous compound (Na₅P₃O₁₀) or a hexahydrate (Na₅P₃O₁₀·6H₂O). |
Water Solubility | Highly soluble in water, with solubility increasng with temperature. At 20°C, solubility is approximately 14 g/100 mL. At 60°C, solubility is approximately 30 g/100 mL. |
Other Solvent | Insoluble in organic solvents (e.g., ethanol). |
Aqueous Solution pH | The pH of a 1% aqueous solution is approximately 9.5-10.5, making it alkaline |
Decomposition Temperature | Decomposes at high temperatures (around 622°C) into sodium pyrophosphate (Na₄P₂O₇) and sodium metaphosphate (NaPO₃). |
Hydrate Stability | The hexahydrate tends to effloresce in dry air, losing its water of crystallization. |
Property | Strong hygroscopicity; easily absorbs moisture from the air and may form clumps. |
Property | STPP has strong chelating ability, forming stable soluble complexes with metal ions such as calcium, magnesium, and iron in water. |
Application | This property makes it highly valuable in water treatment, detergents, and food processing. |
What is Sodium Tripolyphosphate
Sodium Tripolyphosphate (STPP), whose chemical formula is Na₅P₃O₁₀,
is an important inorganic compound belonging to the polyphosphate family.
It is a white crystalline powder or particle made from phosphate polymerization at high temperature,
easily soluble in water, and has excellent chelating, dispersing and softening properties.
Main characteristics of sodium tripolyphosphate
Chemical properties:
It has strong chelating ability and can be combined with calcium,
magnesium and other metal ions in water to prevent the formation of scale.
It has good dispersion and can prevent dirt particles from regathering.
Stable in alkaline environment, suitable for alkaline products such as detergents.
Physical properties:
The appearance is white powder or particle.
Soluble in water, aqueous solution is alkaline.
Strong hygroscopicity, need to be stored in a dry environment.
Preparation of sodium tripolyphosphate
Sodium tripolyphosphate is usually prepared by the following steps:
The phosphoric acid (H₃PO₄) reacted with sodium hydroxide (NaOH) to form sodium phosphate (Na₃PO₄).
Sodium phosphate is dehydrated and polymerized at high temperature to produce sodium tripolyphosphate.
Main uses of sodium tripolyphosphate
Detergent industry:
As a washing aid, soften water quality and enhance decontamination ability.
Prevent dirt redeposition, maintain detergent alkaline environment.
Food Industry:
As a food additive (E451), it is used for water retention, texture improvement and corrosion protection.
Industrial Water treatment:
Used for boiler water and cooling water treatment to prevent scaling and corrosion.
Ceramics and Building Materials:
As a dispersant, improve the fluidity of ceramic slurry.
Textile industry:
As a printing and dyeing aid, improve dyeing uniformity and color fastness.
Other areas:
Petroleum industry, metal processing, paper industry, coating industry, etc.
Environmental problems of sodium tripolyphosphate
Environmental impact: The decomposition of sodium tripolyphosphate in the water body may lead
to eutrophication of the water body, causing excessive algal reproduction and destroying the ecological balance.
Substitution trend: With the strengthening of environmental regulations,
the application of sodium tripolyphosphate in detergent
and other fields is gradually replaced by non-phosphorus or low-phosphorus alternatives (such as zeolite, polycarboxylate).
Product Advantages of Riel Chemical
Riel Chemical's sodium tripolyphosphate (STPP) products are outstanding in the market,
and their advantages are mainly reflected in the following aspects:
1. Excellent quality and stability
Strict quality management: Riel Chemical adopts advanced production technology
and strict quality control system to ensure the high purity and stability of sodium tripolyphosphate products.
High-quality raw materials: Select high-quality raw materials to ensure excellent product performance.
Consistency Guarantee: Ensure consistency from batch
to batch through fully automated production lines and standardized processes.
2. Environmental protection and sustainable development
Green production process: Riel Chemical adopts environmentally friendly production technology
to reduce the discharge of wastewater, exhaust gas and solid waste and reduce the impact on the environment.
Compliance with environmental regulations: products meet domestic
and foreign environmental standards to meet customers' needs for sustainable development.
3. Strong R&D and innovation capability
Highly qualified R&D team:
Riel Chemical has an experienced R&D team focused on the performance optimization of sodium tripolyphosphate products
and the development of new applications.
Continuous innovation: Continuously improve the production process, improve product performance,
to meet the diversified needs of customers.
4. Diversified product specifications
Multiple specifications: Sodium tripolyphosphate products with different particle size,
purity and packaging specifications are available to meet the needs of different industries and application scenarios.
Customized services: Provide customized products and solutions according to the special needs of customers.
5. Wide range of applications
Detergent industry: As an efficient washing aid, soften water quality and enhance decontamination ability.
Food industry: As a food additive (E451) for water retention, texture improvement and corrosion protection.
Water treatment: Used for industrial water treatment to prevent scaling and corrosion.
Other fields: It is also widely used in ceramics, textiles, petroleum, metal treatment and other industries.
6. Market recognition and customer trust
Brand reputation: With high quality products and efficient services,
Rier Chemical has won the wide trust of customers at home and abroad.
Long-term cooperation: We have established long-term
and stable cooperative relations with many well-known enterprises, and our market share has steadily increased.
7. Cost advantage and efficient service
Large-scale production: reduce unit cost through large-scale production,
and provide customers with cost-effective products.
Fast response: With a sound supply chain and logistics system,
it can quickly respond to customer needs and ensure timely delivery.
Technical support: Provide professional technical support and after-sales service to help customers solve problems in use.
8. International layout
Global market: Products not only occupy an important position in the domestic market,
but also exported overseas, entering Europe, America, Southeast Asia and other international markets.
International certification: The products have passed a number of international certifications
and meet the access standards of the global market.
Riel Chemical's sodium tripolyphosphate (STPP) products are outstanding in the market,
and their advantages are mainly reflected in the following aspects:
1. Excellent quality and stability
Strict quality management: Riel Chemical adopts advanced production technology
and strict quality control system to ensure the high purity and stability of sodium tripolyphosphate products.
High-quality raw materials: Select high-quality raw materials to ensure excellent product performance.
Consistency Guarantee: Ensure consistency from batch to batch through fully automated production lines
and standardized processes.
2. Environmental protection and sustainable development
Green production process: Riel Chemical adopts environmentally friendly production technology
to reduce the discharge of wastewater, exhaust gas and solid waste and reduce the impact on the environment.
Compliance with environmental regulations: products meet domestic
and foreign environmental standards to meet customers' needs for sustainable development.
3. Strong R&D and innovation capability
Highly qualified R&D team:
Riel Chemical has an experienced R&D team focused on the performance optimization of sodium tripolyphosphate products
and the development of new applications.
Continuous innovation: Continuously improve the production process, improve product performance,
to meet the diversified needs of customers.
4. Diversified product specifications
Multiple specifications: Sodium tripolyphosphate products with different particle size,
purity and packaging specifications are available to meet the needs of different industries and application scenarios.
Customized services: Provide customized products and solutions according to the special needs of customers.
5. Wide range of applications
Detergent industry: As an efficient washing aid, soften water quality and enhance decontamination ability.
Food industry: As a food additive (E451) for water retention, texture improvement and corrosion protection.
Water treatment: Used for industrial water treatment to prevent scaling and corrosion.
Other fields: It is also widely used in ceramics, textiles, petroleum, metal treatment and other industries.
6. Market recognition and customer trust
Brand reputation: With high quality products and efficient services,
Rier Chemical has won the wide trust of customers at home and abroad.
Long-term cooperation: We have established long-term
and stable cooperative relations with many well-known enterprises, and our market share has steadily increased.
7. Cost advantage and efficient service
Large-scale production: reduce unit cost through large-scale production,
and provide customers with cost-effective products.
Fast response: With a sound supply chain and logistics system,
it can quickly respond to customer needs and ensure timely delivery.
Technical support: Provide professional technical support
and after-sales service to help customers solve problems in use.
8. International layout
Global market: Products not only occupy an important position in the domestic market,
but also exported overseas, entering Europe, America, Southeast Asia and other international markets.
International certification: The products have passed a number of international certifications
and meet the access standards of the global market.
FAQ
1.What is your payment term?
We can accept T/T and L/C at sight as payment term.
2.Are you able to deliver on time?
Of course! we specialised in this line for many years,
many customer make a deal with me because we can deliver the goods on time and keep the goods top quality!
3.Do you provide free sample?
Yes, we can provide free sample . You only need to take the express fee.
4.How about the price?Can you make it cheaper?
We always take the customer’s benefit as the top priority.
Price is negotiable under different conditions, we are assuring you to get the most competitive price.
5.Can I visit your company and factory in China?
Sure. You are very welcomed to visit our company in Weifang, China.
(We will have someone responsible for picking up and dropping off at Weifang Airport)
6.What if there is a quality problem?
We have a professional and perfect after-sales service team, timely for you to deal with all problems.